A note on extended reduced rank-two Abaffian update schemes in the ABS-type methods

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摘要

Amini, Mahdavi-Amiri and Peyghami proposed extended reduced rank-two Abaffian update schemes in the ABS-type methods for solving full row rank linear systems of equations. Here, we show that their proposed stepsize is not valid in general and then we correct it.

论文关键词：ABS methods,Two-step ABS algorithms,Residual value,Stepsize

论文评审过程：Received 25 May 2017, Revised 24 December 2017, Accepted 5 January 2018, Available online 3 February 2018, Version of Record 3 February 2018.

论文官网地址：https://doi.org/10.1016/j.amc.2018.01.006